/**
 * BibSonomy-Model - Java- and JAXB-Model.
 *
 * Copyright (C) 2006 - 2016 Knowledge & Data Engineering Group,
 *                               University of Kassel, Germany
 *                               http://www.kde.cs.uni-kassel.de/
 *                           Data Mining and Information Retrieval Group,
 *                               University of Würzburg, Germany
 *                               http://www.is.informatik.uni-wuerzburg.de/en/dmir/
 *                           L3S Research Center,
 *                               Leibniz University Hannover, Germany
 *                               http://www.l3s.de/
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.bibsonomy.model.comparators;

import java.util.Comparator;

import org.bibsonomy.model.PersonName;

/**
 * @author dzo
 */
public class PersonNameComparator implements Comparator<PersonName> {

	@Override
	public int compare(final PersonName personName, final PersonName otherPersonName) {
		/*
		 * first compare by last name
		 */
		final int lastNameCompare = personName.getLastName().compareTo(otherPersonName.getLastName());
		
		if (lastNameCompare != 0) {
			return lastNameCompare;
		}
		
		/*
		 * if both last name are identical sort by first name
		 */
		return personName.getFirstName().compareTo(otherPersonName.getFirstName());
	}
}
